Removable-type fourdrinier paper-making machine



June 1929- A. ALDRICH ET AL 1,715,530

REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Original Filed Sept. 19, 1925 3 Sheets-Sheet l TOIOIOIOIOIOICIOIOIOI'I I.

J1me 1929- A. ALDRICH ET AL I 3 REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Original Filed Sept. 19, 1925 3 Sheets-Sheet 2 June 4, 1929. A. ALDRICH ET AL 1,715,530

REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Original Filed Sept. 19, 1925 3 Sheets-Sheet '3 jig 5 Patented June 4, 192a.

UNITED STATES PATENT OFFICE.

ALONZO ALDRICH AND EARL E. BERRYyOF BELOIT, WISCONSIN, ASSIGNORS T0 BELOIT IRON TITOIBIIKS,- A CORPORATION OF WISCONSIN.

REMOVABLE-TYPE I rounnmnrnn rerun-Maxine mourns.

Original application filed September 19, 1925, Serial No. 57,272. Divided and this application filed December 8, 1926.

This invention relates to improvements in a removable table type of Fourdrinier paper making machine.

y The embodiment of our invention disclosed (win this application was originally disclosed 'in our. co-pending application, Serial No. 57,272, filed September 19, 1925, of WhlCll the present application is a division.

It is an object of this invention to provide an improved Fourdrinier construction wherein the table is laterally removable as a unit upon tracks adapted to be permanently associated with the Fourdrinier, structure and forming the support for said table unit,wh1le in operative and removed position.

Other and further important objects of this invention will be apparent from the disclosures in the specification and the accom panying drawings.

This invention (in a preferred form) is 1llustrated in the drawings and hereinafter more fully described.

On the drawings: a

Figure 1 is a fragmentary diagrammatic side elevational view of a Fourdrinier paper making machine, showing a table and supporting structure embodying the principles of this invention.

Figure 2 is a broken plan view of Figure 1, with the table removed to show the supportin structure and tracks. a

igure 3 is an enlarged transverse view taken substantially on line III-Ill of Figure 2.

Figure 4 is a fragmentary top view oi'Figure 3.

Figure 5 is an enlarged sectional view taken on line V-V of Figure 4.

Figure 6 is an enlarged fragmentary view taken on line VL-VI of Figure 3, with the table structure removed.

Figure 7 is an enlarged detailed view.

'As shown on the drawings:

There is shown in Figure 1 a portion of a Fourdrinier paper making machine of the removable table type embodying the plum ciples of our invention.

The reference numeral 1 indicates a supportin" structure as a whole, comprising a air oi longitudinal I-beams 2 spaced apartliy means of transverse beams 13 bolted there to. Mounted on said supporting structure 1 are a plurality of transverse I-rails l, which together with the Lbeams 2 form a substruc- Serial- No. 153,234.

ture on which a table structure 5 is adapted to be'supportcd when in operative position.

The rails 4 also serve, as will later be explained, as tracks on which the table is adapted to be moved when a wire is being changed. Said table structure 5 comprises a pair of table rails 6 supporting the usual table rolls 7 and suction boxes 8. A wire guide roll 9, a wire stretch roll 10 and an inside wire roll 11 are indicated on the drawings. A breast .run of the wire 14, are journalled in bearings carried by the supporting beams 2. Any suitable shaking mechanism may be associated with the breast roll or table structure or both.

The table rails 6 are supported in operative position by flanged rollers 16 running on said tracks 4, said rollers being operated by means of a driven shaft 17 to cause the table structurefi to roll as a. unit over the tracks 4.

The table rails 6 are tied together by means of transverse bars 18 to "form the unitary table structure 5. Said table rails 6, which are'preferably formed of channel iron, supportfrom their lower flanges a plurality of hollow brackets 19, which form the bearings for the driving shaft 17. The flanged rollers 16 are adapted to be housed in pairs within said hollow brackets 19. A collar 20 on each side of said hollow bracket 19 takes up any end thrust on the shafts 17 and holds the rollers 16 against binding. The hollow bracket 19 on the back end of each of the beams 18 is drilled and threaded to receive a locking screw 2-1 secured to the track 4, for locking the table structure in place. The tracks 4, which will hereafter be designated as the inner tracks, are each pivotally mount ed upon the front side of the machine by means of a swivel bracket 22 enclosing a pivot pin. 23 secured to the I-beam 9. by means of a supporting bracket 24. I An outside track 25 is slidably mounted beside each oi? the tracks 4 upon rollers 26 and 31 carried in a frame 27. Said frame 27 is provided with a of the track 4. Said rollers 32 are mounted on pins 33 adjustably secured in the side 29 of'the frame 27 Said rollers 32 are so positioned as to bear against the top face of the lower flange of the track 25, and thus support said track in unbalanced position. I The track 25 is at the same time held against the rollers 26 and 31 bet-ween the flanged ends thereof to prevent said track from jumping off the rollers 26 and 31 when being moved 1nand out of the machine. A pair of oppositely positioned adjusting bolts 34 extend from the frame sides 29 and 30 to abut each side of the web of the track 25, thereby holding it in vertical position. When the track 25 is in inoperative position it extends between. the beams 2, the back end of said track-resting; on a curved surface 35 formed in a frame-"36' secured to the rear beam 2. Said franie 36 also carries a pair of adjusting bolts 37 simi lar to the bolts 34. The free end of the track 4 in operative position rests uponan elevated seat 38 formed on the frame 26. A locking pin 39 serves to lock said track 4 in operative position to the frame 36. i j r 7 It will be noted from Figure 6 that the in,- side tracks 4 are a trifle higher than the sliding tracks 25 in order to permit the tracks 25 to be easily moved into an outer position.- Furthermore, the inner end of each track'25 is slightl tapered on its top' face as at 40. (Figure to provide a gentle slope extend ing below the face of the adjoining track 4. There is, therefore, no possibility ofijolting as the table structure 5 is rolled out and the rollers 16 roll off the tracks 4 onto the tracks 25. I

During the operation of the paper machine, both sets of tracks 4 and 25 are adapted to be positioned between the front and rear I-beams 2 in locked position. When a wire is to be changed the tracks 25 are pulled out to the extended position and the table structure 5 rolled out on it. Inthis connection, a fixed, stationary support 41 is provided for the free end of each of the tracks 25 in extended position. It will be understood of course, that before the table structure 5 can be moved out, the breast roll 12 and couch roll 13 must be moved toward each other so as to give the necessary slack in the wire. The wire is thensuitably suspended away from the table structure 5 and said table structure rolled out onto the tracks 25. The inside tracks 4 are then unlocked and swung parallel to the beam 2, after which a new wire is able type sub-structure, a laterally removable tablestrung in place and the tracks 4 swung back i chine may be operated with the tracks 4 and 25 in this position for the reason that the lower run of the wire extends'below said,

tracks and therefore does not interfere there-- with. i

siderable amount of time and labor is saved in thefchanging of wires onthepapenma- H chine. It shouldbe particularly noted that. the pivotally mounted tracks 4 form a permanent part ofthe, table sub-structure on which the table unit is adapted normallyto rest. "The onlysteps necessary therefore in changing the wire. are the pulling out of the so. A

beams 25, the rolling outv of the table Sane: ture by meapsvlof the power driven shaftlfi,

v w n in' beams 2 iwhi le1;the new wire is being "strung in position, e swinging back" of the tracks f .thetracks .4' parallel to-the 4into lockedposition,,the rollingback of'the table structure finally the pushing ofthe' tracks .25 backiinto fpositionv adjacent the; 3 tracks 4-,? "Sincethejtracks 2 5 are mounted on i" roller bearing surfaces and are supported in 'unbalancedpositionbyfmeans of the spaced Y bevelled rolls 32' -and. the'rolls 26- and 31, I

the: effort: required-{in moving the tracks 25 into and out of position is yery s1ight.

- We are aware'that many changes may be tion may be varied thro ugh a wide range made, and numerous details of the COIlStlllC-r without departing from the principles of this 7 invention," and we therefore do not purpose limiting the patent granted hereon, other:-

wise than necessitated by the prior art. We claim as-our invention;

1. In a paper ,making machine, a table structure and track members on which said structure may be removed comprising pivot- I no ed inner members and slidable outer mem bers adapted to form parallel extensions 3 therewith, and to be normall bers. I I 2. In a paper bers andslidableouter mem. -ers adapted to form parallel extensions therewith and to be normally positioned alongside of and parallel to said inner members above the lowstructure, tracks pivotally mounted on said,

sub-structure and forming-the normal. sup:

port for said table structure in operative positioned alongside of and parallel to sai inner memmaking machine, a table structure, a wire associated therewith, and. track members on which said structure may .be removed comprising pivoted inner mem- 75' It will thus be apparent that We have pro- 7 videda' simplified structure whereby a conposition and other tracks mounted for rolling movement on said sub-structure and adapted to be extended laterally to form a support for said table structure when in removed position.

4. In a paper making machine, a removable type Fourdrinier section comprising a position, and guiding and supporting means for maintaining said last mentioned tracks in level. upright position during movement of said tracks.

5. In a paper making machine of the removable Fourdrinier type, a laterally removable table unit, tracks on which said table may be removed comprising inner pivotally mounted rails and outer laterally movable rails having lower flanges, rollers for supporting said outer rails and bearing rollers adapted to contact the upper surfaces 'of the lower flanges of said outer rails to hold said outer rails level during mo ement of the same. 7

6. In a paper making machine, a table, a wire associated therewith, inner pivotally mounted track members normally support ing the table and other slidably mounted track members'adapted to be moved laterally for supporting said table in removed position, all of said track'members beingposif tioned above the lower run of said wire.

In testimony whereof we have hereunto subscribed our names. v

1 ALONZO ALDRICH.

EARL E. BERRY. 

